package com.csq.service;

import com.csq.entity.User;

/**
 * @author ercai
 * @date 2019/7/18 - 14:27
 */
public interface UserService {
    public User findById(Integer id);

    public User selectByParentId(Integer parentId);

    public void insert(User user);

    public String add(int a,String b);
}
